Task manager and regedit disabled!?

vishu_ka

Honorable
Aug 12, 2013
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0
10,640
My PC got infected by some kind of virus by pen drive, it was *.pif i guess! so what it did is when i try to open Task manger or Regedit it says "Disabled by admin".... i googled and tried 2-3 techniques but did not work....
one which i was unable to do was GPEDIT.MSC editing trick to enable because when i try to open error occurs (see image->)
PVUDqxo.jpg

now i dont want to reinstall my window so what should i do to enable task manager and regedit????
thanks